Hello all, So I stopped by my daughters house yesterday, she has a 29 gallon fresh water tank. I was amazed by the action/movement of the whole tank. Like watching a pinball machine, multiple games of table tennis going at the same time. I have a 20 gallon long, cycled with 10 neon tetras and four agassizi cories. My tank most times looks dead. The cories mostly hide with occasional short bursts, and the neons will just very lazily swim near the bottom and also spend alot of time just hanging out. Is this normal? My water is fine, tests great, looks super clean with just a small amount of the brown common algae. Weekly 25% water exchange using prime. My temp stays steady at 76F. Is this too cold? Would overfeeding make them all lazy? Also what super active colorful fish would be happy with the neons and cories? My daughter will email me the names and colors of her fish later. I really want a few bigger more colorful fish, like in yellows or oranges. Thanks for all replies.